Danfoss LonWorks 78 kbps, LonWorks 1.25 Mbps Operating guide

LonWorks® 78 kbps and 1.25 Mbps Option Card

Instruction Manual

DANGER

Rotating shafts and electrical equipment can be hazardous. Therefore, it is strongly recommended that all electrical work conform to the National Electrical Code (NEC) and all local regulations. Installation, start-up and maintenance should be performed only by qualified personnel.

VLT® 5000 / VLT® 6000

does not disconnect the equipment from the AC line and is not to be used as a safety switch.

3. Correct protective grounding of the equipment must be established. The user must be protected against supply voltage and the motor must be protected against overload in accordance with applicable national and local regulations.

4. Ground currents are higher than 3 mA.

Factory recommended procedures, included in this manual, should be followed. Always disconnect electrical power before working on the unit.

Although shaft couplings or belt drives are generally not furnished by the manufacturer, rotating shafts, couplings and belts must be protected with securely mounted metal guards that are of sufficient thickness to provide protection against flying particles such as keys, bolts and coupling parts. Even when the motor is stopped, it should be considered “alive” as long as its controller is energized. Automatic circuits may start the motor at any time. Keep hands away from the output shaft until the motor has completely stopped and power is disconnected from the controller.

Motor control equipment and electronic controls are connected to hazardous line voltages. When servicing drives and electronic controls, there will be exposed components at or above line potential. Extreme care should be taken to protect against shock. Stand on an insulating pad and make it a habit to use only one hand when checking components. Always work with another person in case of an emergency. Disconnect power whenever possible to check controls or to perform maintenance. Be sure equipment is properly grounded. Wear safety glasses whenever working on electric control or rotating equipment.

Safety Guidelines

1. The drive must be disconnected from the AC line before any service work is done.

2. The “Stop/Off” key on the local control panel of the drive

W arnings Against Unintended Start

1. While the drive is connected to the AC line, the motor can be brought to a stop by means of external switch closures, serial bus commands or references. If personal safety considerations make it necessary to ensure that no unintended start occurs, these stops are not sufficient.

2. During programming of parameters, the motor may start. Be certain that no one is in the area of the motor or driven equipment when changing parameters.

3. A motor that has been stopped may start unexpectedly if faults occur in the electronics of the drive, or if an overload, a fault in the supply AC line or a fault in the motor connection or other fault clears.

4. If the “Local/Hand” key is activated, the motor can only be brought to a stop by means of the “Stop/Off” key or an external safety interlock.

NOTE: It is responsibility of user or person installing drive to provide proper gr ounding and branch circuit protection for incoming power and motor overload according to National Electrical Code (NEC) and local codes.

The Electronic Thermal Relay (ETR) is UL listed. VLTs provide Class 20 motor overload protection in accordance with the NEC in single motor applications, when VLT 6000 parameter 117 (VLT 5000 parameter 128) is set for ETR Trip 1 and parameter 105 is set for rated motor (nameplate) current.

DANGER

Touching electrical parts may be fatal – even after equipment has been disconnected from AC line. To be sure that capacitors have fully discharged, wait 14 minutes after power has been removed before touching any internal component.

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Overview

Introduction............................................................................................. 5

About This Manual .................................................................................. 5

Assumptions ........................................................................................... 5

What You Should Already Know ............................................................ 5

References .............................................................................................. 5

LonWorks Overview................................................................................ 6

LON Concept........................................................................................... 6

Applications ............................................................................................ 6

VLT LonWorks Option Card.................................................................... 7

Node Arrangements................................................................................ 7

Message Passing .................................................................................... 7

Collision Detection ................................................................................. 8

Network Management............................................................................. 8

Routers and Bridges............................................................................... 9

Installation

Wiring Installation................................................................................... 10

Card Installation...................................................................................... 10

T ools Required ........................................................................................ 10

VL T LonW orks Option Card.......................................................................11

Installation Instructions ......................................................................... 12

Network Initialization of LonW orks Option Car d .................................. 19

LonMark XIF Files ................................................................................... 19

VLT® 5000 / VLT® 6000

Table of Contents

T wisted Pair Netw ork Configuration

78 kbps and 1.25 Mbps T ransf ormer Coupled Twisted Pair Model ....... 20

Double Terminated Bus Topology........................................................... 20

T erminator Switch ................................................................................... 20

Performance Specification...................................................................... 2 1

Communication on TP/XF-78 and TP/XF-1250 Channels ...................... 21

Diagnostic LEDs

LonWorks Car d Diagnostic LEDs ........................................................... 22

Status LED ............................................................................................... 22

Service LED ............................................................................................. 22

Service LED Patterns and Descriptions ................................................. 23

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Interface/Network Variables

VL T Adjustable Frequency Drive

and LonWorks Netw ork Configuration ................................................... 24

Network Drive Control Input ................................................................... 24

Drive Feedback to Network ..................................................................... 27

Drive Status Bit Definitions..................................................................... 28

Network Timer Functions....................................................................... 30

VL T P arameter Access ............................................................................ 31

Parameter Access Error Codes............................................................... 32

Parameter Access Command and Response Examples........................ 32

Standard Object Support ........................................................................ 3 4

Alarm Descriptions.................................................................................. 35

Parameters

Parameter List ......................................................................................... 36

Parameter Description............................................................................. 3 6

Decommissioning VLT Adjustable Frequency Drive

Decommissioning VL T Drive from LonW orks Network ......................... 39

VLT® 5000 / VLT® 6000

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VLT® 5000 / VLT® 6000

Introduction

About This Manual

This manual provides comprehensive instructions on the installation and set up of the LonWorks Option Card for the VLT 5000 and the VLT 6000 Adjustable Frequency Drive to communicate over a LonWorks network.

For specific information on installation and operation of the adjustable frequency drive, refer to the VLT 5000 Installation, Operation

and Instruction Manual or VLT 6000 Installation, Operation and Instruction Manual.

This manual is intended to be used for both instruction and reference. It only briefly touches on the basics of the LonWorks protocol whenever it is necessary for gaining an understanding of the LonWorks profile for drives and the LonWorks Option Card for the Adjustable frequency drive.

This manual is also intended to serve as a guideline when you specify and optimize your

Portions of this manual are printed with the permission of the Echelon Corporation and the National Electrical Contractors Association of the USA (NECA).

Echelon®, LonTalk®, Neuron® and LonWorks are registered trademarks of the Echelon Corporation. VLT® is a registered trademark of Danfoss Inc.

communication system. Even if you are an experienced LonWorks programmer, we suggest that you read this manual in its entirety before you start programming, since important information can be found in all sections.

Assumptions

What Y ou Should Already Know

References

This manual assumes that you have a controller node that supports the interfaces in this document and that all the requirements stipulated in the controller node, as well as

The Danfoss LonWorks Option Card is designed to communicate with any controller node that supports the interfaces defined in

LonMaker™ for Windows® User's Guide.

VLT® 5000 Installation, Operation and Instruction Manual

(Referred to as the VLT Instruction Manual in this document.)

VLT ®6000 Installation, Operation and Instruction Manual

(Referred to as the VLT Instruction Manual in this document.)

the Adjustable Frequency Drive, are strictly observed along with all limitations therein.

this document. It is assumed that you have full knowledge of the capabilities and limitations of the controller node.

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VLT® 5000 / VLT® 6000

LonWorks Overview

LON Concept

LonWorks is both an existing standard and hardware developed by Echelon Corporation. Echelon's stated goal is to establish a commodity solution to the presently daunting problems of designing and building control networks.

The result is LonMark Interoperability which makes it possible for independent network devices to operate together over a LonWorks network. The LonMark program was developed to address interoperability issues. As a result, the LonMark Interoperability Association Task Groups (LonUsers Groups) were developed. The task groups determine that each device on the network has an object definition, create

The LonWorks communications structure is similar to that of a local area network (LAN) in that messages are continually exchanged between a number of processors. A LonWorks system is a determined local operating network (LON). LON technology offers a means for integrating various distributed systems that perform sensing, monitoring, control, and other automated functions. A LON allows these intelligent devices to communicate with one another through an assortment of communications media using a standard protocol.

LON technology supports distributed, peerto-peer communications. That is, individual

standards and models to be used by particular applications and create a common platform for presenting data. A standard network variable type (SNVT) facilitates interoperability by providing a well defined interface for communication between devices made by different manufacturers. The VLT Adjustable Frequency Drive supports the node object and controller standard object definitions of LonMark Interoperability.

Customers are currently using LonWorks for process control, building automation, motor control, elevator operation, life safety systems, power and HVAC distribution and similar intelligent building applications.

network devices can communicate directly with one another without need for a central control system. A LON is designed to move sense and control messages which are typically very short and which contain commands and status information that trigger actions. LON performance is viewed in terms of transactions completed per second and response time. Control systems do not need vast amounts of data, but they do demand that the messages they send and receive are absolutely correct. The critical factor in LON technology is the assurance of correct signal transmission and verification.

Applications

An important LonWorks benefit is the network’s ability to communicate across different types of transmission media. The NEURON chip is the heart of the LonWorks system. The NEURON chip's communication port allows for the use of transceivers for other media (such as coax and fiber optic) to meet special needs.

LonWorks control devices are called nodes. Physically, each node consists of a NEURON chip and a transceiver. With proper design, the nodes become building blocks that can

be applied to control a variety of tasks, such as lighting or ventilating, integrating a variety of communications media.

The tasks which the nodes perform are determined by how they have been connected and configured. Because hardware design, software design, and network design may be independent in a LonWorks-based system, a node’s function can be programmed to accommodate the networks in which it will be used.

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VLT® 5000 / VLT® 6000

VLT LonWorks Option Card

The Danfoss VLT LonWorks option card is comprised of a control card with a NEURON chip and a memory card. When installed into the VLT adjustable frequency drive, the unit enables the drive to communicate with other devices on the LON. The VLT drive is designed to provide precision control of standard induction electrical motors. The drive receives three reference signals along with start/stop and reset commands from the network. The drive also receives a 16-bit control word that provides full operational control of the drive. (See Network Drive Control Input for additional details.)

In response, the drive provides 16 output network variables containing important drive and motor data. (See Drive Feedback to Network.) Output to the network includes drive status, current, voltage, motor and inverter thermal status, and alarms and warnings.

LonWorks supports many different types of transmission media. A LonWorks network physical layer option can be transformer coupled twisted pair (78 kbps and 1.25 Mbps), free topology, link power, power line, RF, RS-485, fiber optic, coaxial, or infrared.

The VLT LonWorks option supports four transmission media with three versions of the VLT LonWorks option card. The VLT LonWorks option card versions are:

1. Free topology, which also operates on a link power network.

2. 78 kbps transformer coupled twisted pair.

3. 1.25 Mbps transformer coupled twisted pair.

A router is required to interface to a LonWorks network when not supported by one of the three option card versions.

Node Arrangements

Message Passing

LonWorks nodes can be addressed either individually or in groups. A group can contain up to 64 nodes, and one LonWorks network can support 255 groups. Furthermore, any node can be part of 15 different groups. A subnet, very similar to a group, can contain 127 nodes. A domain is the largest arrangement of nodes with a single domain able to handle 255 subnets. Thus a domain can handle 32,385 separate nodes. A single node may be connected to no more than two domains.

The group structure has the advantage of allowing a number of nodes to be reached at only one address. This method reduces the

There are a number of trade-offs between network efficiency, response time, security, and reliability. Generally, LonWorks defaults to the greatest degree of safety and verification for all communications over the LON network. The LonTalk protocol, built into the chips, is the operating system that coordinates the LonWorks system. It offers four basic types of message service.

record keeping inside each chip to a minimum, allowing faster operation. However, high efficiency individual addressing can be done at all levels of a LonWorks system. The address table of a node contains entries for the group type and size and tells the node how many acknowledgments to expect when it sends a message. It also tells the NEURON chip which domain to use and the node group member number, which identifies an acknowledgment as coming from the node. The address also contains a transmit timer, a repeat timer, a retry counter, a receive timer, and the group ID.

The most reliable service is acknowledged (or end-to-end acknowledged service), where a message is sent to a node or group of nodes and individual acknowledgments are expected from each receiver. If an acknowledgment is not received from all destinations, the sender times out and re-tries the transaction. The number of retries and time-out duration are both selectable. Ac-

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VLT® 5000 / VLT® 6000

Message Passing (continued)

Collision Detection

knowledgments are generated by the network host processor without intervention of the application. Transaction IDs are used to keep track of messages and acknowledgments so that the application does not receive duplicate messages.

An equally reliable service is request/response, where a message is sent to a node or group of nodes and individual responses are expected from each receiver. Incoming messages are processed by the application on the receiving side before a response is generated. The same retry and time-out options are available as with acknowledged service. Responses may include data, so that this service is particularly suitable for remote procedure call or client/server applications.

The LonTalk protocol uses a unique collision avoidance algorithm which allows an overloaded channel to carry near to its maximum capacity, rather than reducing its throughput due to excessive collisions between messages. When using a communications medium that supports collision detection, such as twisted pair, the LonTalk protocol can optionally cancel transmission of a packet as soon as a collision is detected by the transceiver. This option

Next in reliability is unacknowledged repeated. Messages are sent multiple times to a node or a group of nodes with no response expected. This service is typically used when broadcasting to large groups of nodes when traffic generated by all the responses would overload the network.

The final method in reliability is unac- knowledged, where a message is sent once to a node or group of nodes and no response is expected. This option is typically used when the highest performance is required, network bandwidth is limited, and the application is not sensitive to the loss of a message.

allows the node to immediately retransmit any packet that has been damaged by a collision. Without collision detection, the node would wait the duration of the retry time to notice that no acknowledgment was received. At that time it would retransmit the packet, assuming acknowledge or request/response service. For unacknowledged service, an undetected collision means that the packet is not received and no retry is attempted.

Network Management

Depending on the level of a given application, a LonWorks network may or may not require the use of a network management node. A network management node performs management functions, such as:

• Find unconfigured nodes and download their network addresses.

• Stop, start, and reset node applications.

• Access node communication statistics.

• Configure routers and bridges.

• Download new applications programs.

• Extract the topology of a running network.

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VLT® 5000 / VLT® 6000

Routers and Bridges

A router (or bridge) is a special node that consists of two connected NEURON chips, each connected to a separate channel (see figure below). Routers and bridges pass packets back and forth between these channels. There are four types of routers. A repeater is the simplest form of router, simply forwarding all packets between the two channels. A bridge simply forwards all packets which match its domains between the two channels. Using a bridge or repeater, a subnet can exist across multiple channels. A learning router monitors the network traffic and learns the network topology at the domain/subnet level. The learning router then uses its knowledge to selectively route packets between channels. Like a learning router, a configured router selectively routes packets between channels by consulting internal routing tables. Unlike a learning router, the contents of the internal routing tables are specified using network management commands.

Initially, each router sets its internal routing tables to indicate that all subnets could lie on either side of the router. Suppose that node 6, in the figure below, generates a message bound for node 2. Learning router 1 initially picks up the message. It examines the source subnet field of the message and notes in its internal routing tables

that subnet 2 lies below it. The router then compares the source and destination subnet IDs and, since they are different, the message is passed on. Meanwhile, learning router 2 also passes the message on, making an appropriate notation in its internal routing tables regarding the location of subnet 2.

Suppose now that node 2 generates an acknowledgment. This acknowledgment is picked up by learning router 1, which now notes the location of subnet 1. Learning router 1 examines its internal routing tables, and, noting that subnet 2 lies below, passes the message on. When the message appears on subnet 2, it is noted by both node 6 (the destination) and learning router 2. Learning router 2 does not pass it on but merely notes that subnet 1, like subnet 2, lies somewhere above. Learning router 2 will not learn of the existence or location of subnet 3 until a message is originated from there. Subnets cannot cross routers. While bridges and repeaters allow subnets to span multiple channels, the two sides of a router must belong to separate subnets. Since routers are selective about the packets they forward to each channel, the total capacity of a system can be increased in terms of nodes and connections.

Channel

1 2 3 4

Subnet 1

Channel

9 10 11 12

Subnet 3

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Learning

Router 1

Learning Router 2

Learning Routers

Source: Echelon Corp.

Channel

5 6 7 8

Subnet 2

Wiring

CAUTION

Installation

iringiring

iring

iringiring The adjustable frequency drive generates a carrier frequency with a pulse frequency between 3 kHz and 14 kHz. This results in radiated frequency noise from the motor cables. It is very important that the LonWorks cable be isolated as much as possible from the drive output cabling to the motor. Use shielded wire rather than twisted-pair. Do not run LonWorks cabling and motor cables in parallel or in close proximity to one another. Ensure that the drive is properly grounded.

VLT® 5000 / VLT® 6000

Card Installation

The following section describes the installation procedures for the LonWorks option card (see following illustration). For additional information on installation and operation of the VLT adjustable frequency drive, refer to the VLT Instruction Manual.

DANGER

VLT adjustable frequency drive contains dangerous voltages when connected to line power. After disconnecting from line, wait at least 14 minutes before touching any electrical components.

WARNING

Only a competent electrician should carry out electrical installation. Impr oper installation of motor or VLT can cause equipment failure, serious injury or death. Follow this manual, National Electrical Code (USA) and local safety codes.

Electronic components of VLT adjustable frequency drives are sensitive to electrostatic discharge (ESD). ESD can reduce performance or destro y sensitive electronic components. Follow proper ESD procedures during installation or servicing to prevent damage.

It is responsibility of user or installer of VLT adjustable frequency drive to provide pr oper grounding and motor overload and branch protection according to National Electrical Code (USA) and local codes.

Tools Required

Flat-head screw driver Torx T-10 screw driver Torx T-20 screw driver

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VLT® 5000 / VLT® 6000

Terminator Switch

Ribbon Cable Socket (to Memory Board)

LEDs

Terminal Connector

Service Pin Switch SW1

Mounting Hole

LEDs

Terminal Connector

Service Pin Switch SW3

Ribbon Cable Socket (to Control Board)

Ribbon Cable Socket (to drive control board)

Host Chip

LonWorks Control Board

Drive Memory

VLT LonWorks Option Card

(Free T opology Model)

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Memory Board

Installation Instructions

VLT® 5000 / VLT® 6000

1. Access to Control Card Cassette

2. Disconnect Control Card Cassette

IP20/NEMA 1 and Bookstyle

• Remove Local Control Panel (LCP) by pulling out from top of display (A) by hand. LCP connector on panel back will disconnect.

• Remove protective cover by gently prying with a screw driver at notch (B) and lift cover out of guide pin fittings.

IP54/NEMA 12

• Open front panel of drive by loosening captive screws and swing open.

• Disconnect Local Control Panel (LCP) cable from drive control card.

• Remove control wiring by unplugging connector terminals (A).

• Remove grounding clamps (B) by removing two screws holding each in place. Save screws for reassembly.

• Loosen two captive screws (C) securing cassette to chassis.

(A)

(B)

(A)

(B)

(C)

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VLT® 5000 / VLT® 6000

3. Remove Cassette and Ribbon Cables

• Lift control card cassette from bottom.

• Unplug two ribbon cables (A) and (B) from control board.

• Unhinge cassette at top to remove.

NOTE Ribbon cables will need to be reconnected to same connections from which removed.

(A)

(B)

4. Chassis Ground Connections

NOTE Ground strips are used on 208 V drives of 22 kW (30 HP) or less and on 460 V drives of 45 kW (60 HP) or less. For all other drives, go to step 6.

• Location of holes to mount grounding strips can vary with drive configuration. When applicable, remove mounting screws and washers located in chassis using Torx T-20 screw driver and save for reassembly. Otherwise, grounding strips attach with screws and washers provided, as shown in step 5.

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VLT® 5000 / VLT® 6000

5. Install Chassis Ground Connections

• Align ground strips over screw holes. Strip with fewest contact points mounts on cable side of chassis. Tabs on grounding strips point toward outside of chassis.

• Replace screws removed in step 4 and add additional screws and washers provided, as necessary. Tighten to

0.9 Nm (8 in-lbs) using Torx T-20 screw driver.

Ground Strips

6. Install Ribbon Cables between Option Cards

• Attach ribbon cables between LonWorks control card and memory card.

• Be sure exposed wire portion of ribbon cable (A) is facing front of socket (B). Do not remove blue insulation covering end of ribbon cable.

• Pull up collar (C) of ribbon cable socket, insert cable and push collar closed.

• Repeat procedure for all ribbon cables.

IP20/NEMA 1 and IP54/NEMA 12

• Remove terminal connector from terminal block (D) and connect to terminal block (E) at this time for ease of access.

(D)

(E)

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VLT® 5000 / VLT® 6000

7. Remove LCP Cradle

8. Ribbon Cable Routing

IP20/NEMA 1 and Bookstyle

• Carefully push in tabs at corners of LCP cradle to release clips. Pull out to disengage clips and lift cradle free.

• Route ribbon cables from LonWorks memory card through slot at side of control board cassette.

9. Insert LonWorks Card

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• Insert edge of LonWorks cards into slot in side of cassette and align screw holes.

VLT® 5000 / VLT® 6000

10. Secure LonW orks Card

11. Install Ribbon Cable on VLT Control Board

• Secure LonWorks card with 3 self-tapping screws and washers provided using Torx T-10 screw driver. Tighten to 8 in-lbs (0.9 Nm).

• Be sure not to twist or crimp ribbon cables.

• Insert cables into corresponding sockets and fasten in accordance with directions in step 5.

12. Install LCP Cradle

IP20/NEMA 1 and Bookstyle

• Insert cradle clips into holes in cassette.

• Push down on cradle to snap it into place.

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VLT® 5000 / VLT® 6000

13. Install Spring T ension Clip

IP20/NEMA 1 and IP54/NEMA 12

• Spring tension clip (A) is used as a cable strain relief and ground point for shielded cable.

• Insert clip through inner wall of chassis at slot provided.

• Compress spring into clip at outer wall of chassis.

(A)

14. Install Ribbon Cables

• Connect ribbon cables.

• Connect control card cassette to hinge at top of drive and fit into chassis.

NOTE Ribbon cables must be reconnected to same connections from which removed.

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VLT® 5000 / VLT® 6000

15. Install Control Card Cassette

16. Plug in T erminal Connector

• Fasten control card cassette by alternately tightening two captive screws (A). Tighten to 0.9 Nm (8 in-lbs).

• Route control wires through clamp fasteners (B) and secure clamps with two screws.

• Connect control terminals (C) by firmly pressing them into connector receptacles.

• Connect signal wire NET A to terminal 79 and NET B to 80 of terminal connector. (In free topology model, connections can be reversed.)

(C)

(A)

(B)

61 80 79

IP20/NEMA 1 and IP54/NEMA 12

• Plug network connector into terminal block at side of control card cassette.

• Insert LonWorks cable between inner wall of chassis and spring tension clip.

NOTE Shielded cable is recommended. Ground shielded cable at spring tension clip location or ground at cable clamp by removing cable insulation at contact point. Do not use connector terminal 61.

Bookstyle

• Remove knockout from top of drive (A).

• Route control wires through clamp fasteners (B) on cable plate and secure clamps with screws. Tighten to 0.9 Nm (8 in-lbs).

• Secure cable plate to drive with screws and screw holes provided. Tighten to

0.9 Nm (8 in-lbs).

• Plug network connector (C) into terminal block at top of control card cassette.

(A)

Shield 61

NET B 80

NET A 79

(B)

(C)

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VLT® 5000 / VLT® 6000

Network Initialization of LonW orks Option Card

LonMark XIF Files

The LonWorks option card contains a NEURON chip with a unique address. After hardware installation, initialize the LonWorks option card. Addressing nodes on the LonWorks network is performed at installation time by an installation tool or network management tool. Addressing requires the retrieval of a node’s NEURON ID. The NEURON ID is a 48 bit number that identifies every manufactured NEURON chip. There are several methods by which the network software will initialize the drive automatically. The network can recognize the drive without action beyond proper installation. The card is then ready to be programmed for network operation. The VLT LonWorks option supports three additional methods of addressing a node:

1. Service Pin - There are two momentary-contact service switches that send the NEURON ID over the network. If the network software prompts the action, press

A LonMark interface file (.XIF extension) provides the host processor with device information. With this, it is possible to design a LonWorks network without the adjustable frequency drive being physically present. The VLTLON.XIF can be downloaded from the Internet site www.danfoss.com/drives. The LonWorks option card does not contain an internal interface file.

either service pin (SW1 or SW3) to transmit the NEURON ID over the network. The service pin locations are shown in the illustration in Terminator and Service Switch Locations in this manual.

2. Query and Wink - The LonWorks option card is shipped with a domain of “0” and subnet of “1.” Upon receiving the wink command, the on-board green status LED flashes so that the installer can locate the node. The chip sends out its Neuron ID over the network in response to the query command.

3. NEURON ID Label - The VLT LonWorks option card has a NEURON ID label that displays the NEURON ID as a 12 digit hexadecimal number. The installer can manually enter the NEURON ID during installation.

The VLT LonWorks network interface consists only of SNVTs. The SNVTs support the LonMark Controller Profile along with VLT configuration, control and monitoring capabilities. Any combination of SNVTs can be used to operate the VLT.

Echelon Corporation has also developed a set of free plug-ins available through their web site at www.echelon.com/plugin/default.htm. Also intended for network design, these plug-ins provide easy access to screens which simplify the process of manually setting up the drive, testing, and monitoring operation.

The drive may also be added to the network upon initialization.

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VLT® 5000 / VLT® 6000

78 kbps and

1.25 Mbps Transformer Coupled Twisted Pair Model

Doubly Terminated Bus Topology

T erminator and Service Switch Locations

The 78 kbps and 1.25 Mbps Transformer Coupled Twisted Pair model system is designed to support doubly terminated bus topology.

TRANSCEIVER

TERMINATION

The terminator switch location for the 78 kbps or 1.25 Mbps Transformer Coupled Twisted Pair model is shown below.

erminator Switcherminator Switch

erminator Switch

erminator Switcherminator Switch

TERMINATION

Service Pin SwitchesService Pin Switches

Service Pin Switches

Service Pin SwitchesService Pin Switches

Switch 1:Switch 1:

Switch 1:

Switch 1:Switch 1:

Network TNetwork T

Network T

Network TNetwork T The VLT LonWorks node is terminated.

Network TNetwork T

Network T

Network TNetwork T The VLT LonWorks node is not

terminated. Factory setting.

ermination ONermination ON

ermination ON

ermination ONermination ON

ermination OFFermination OFF

ermination OFF

ermination OFFermination OFF

78 kbps and 1.25 Mbps LonWorks

Control Card

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VLT® 5000 / VLT® 6000

CAUTION

Performance Specification

Communication on TP/ XF-78 and TP/XF-1250 Channels

The table below provides a summary of the performance specifications for the 78 kbps and

PerformancePerformance

Performance

PerformancePerformance SpecificationsSpecifications

Specifications

SpecificationsSpecifications

TP/XF-78TP/XF-78

TP/XF-78

TP/XF-78TP/XF-78

1.25 Mbps transformer-coupled twisted pair channels.

TP/XF-1250TP/XF-1250

TP/XF-1250

TP/XF-1250TP/XF-1250

Transmission Speed 78kbps 1.25Mbps Nodes per Channel 64 64 Network Bus Wiring UL Level IV, 0.65 mm (22 AWG) shielded Network Stub Wiring UL Level IV, 0.5 mm (22 or 24 AWG) shielded Network Bus Length

Typical Worst case

Maximum Stub Length

2000m (6,560 ft) 500m (1,640 ft) 1330m (4,360 ft) 125m (410 ft)

3m (10 ft) 0.3m (0 to 70°C)

1 ft (32°F to 158°F) Network Terminators Required at both ends of the network Temperature

Operating 0 to 70°C (64 nodes) 0 to +70°C (64 nodes)

(32°F to 158°F) (32°F to 158°F)

Non-operating –40 to +85°C (44 nodes) –20 to +85°C (32 nodes)

(–40°F to +185°F) (–4°F to +185°F)

–40 to +70°C (20 nodes)

(–40°F to +158°F) Electrostatic Discharge

to Network Connectors

No Errors to 15,000 V to 15,000 V No Hard Failures to 20,000 V to 20,000 V

Isolation between Network and I/O Connectors

0 - 60Hz (60 seconds) 1,000 VRMS 1,000 VRMS 0 - 60Hz (continuous) 277 VRMS 277 VRMS

MG.60.E4.02 - VLT is a registered Danfoss trademark

Typical conditions are 20°C (68°F), +5 VDC

supply voltage, normal wire temperature, and 64 evenly distributed nodes.

Worst case conditions are the combined

effect of worst case conditions of all the above performance parameters — nodes per channel, network bus length, stub length, temperature, etc.

The stub length in the table assumes a mutual

capacitance of 56 pF/m (17 pF/ft) for the twisted pair stub cable. Actual lengths may be shorter or longer depending on the actual, measured value.

It is necessary to terminate theIt is necessary to terminate the

It is necessary to terminate the

It is necessary to terminate theIt is necessary to terminate the ends of a TP/XF-78 or TP/XF-1250ends of a TP/XF-78 or TP/XF-1250

ends of a TP/XF-78 or TP/XF-1250

ends of a TP/XF-78 or TP/XF-1250ends of a TP/XF-78 or TP/XF-1250 twisted pair bus to minimizetwisted pair bus to minimize

twisted pair bus to minimize

twisted pair bus to minimizetwisted pair bus to minimize rr

eflections. Failureflections. Failur

eflections. Failur

eflections. Failureflections. Failur

bus will degrade networkbus will degrade network

bus will degrade network

bus will degrade networkbus will degrade network performance.performance.

performance.

performance.performance.

e to terminate thee to terminate the

e to terminate the

e to terminate thee to terminate the

VLT® 5000 / VLT® 6000

LonW orks Card Diagnostic LEDs

Status LED

The LonWorks board includes two LEDs to display the communication status of the board, display the state of the NEURON chip, and respond to the network management

The Status LED patterThe Status LED patter

The Status LED patter

The Status LED patterThe Status LED patter

ONON

There is power on the board but there has not been any communication to an input network variable in the last 2 seconds.

Flashing 10 times per secondFlashing 10 times per second

Flashing 10 times per second

Flashing 10 times per secondFlashing 10 times per second

There is regular network communication to the VLT's input network variables.

Flashing intermittentlyFlashing intermittently

Flashing intermittently

Flashing intermittentlyFlashing intermittently

There is network communication to the VLT's input network variables but input network variables are received at a period greater than 2 seconds.

ns arns ar

ns ar

ns arns ar

e:e:

“wink” command. The onboard LEDs are the Service LED (LED 1, red) and the Status LED (LED 2, green).

LEDsLEDs

LEDs

LEDsLEDs

Service LED

Flashing 5 times per secondFlashing 5 times per second

Flashing 5 times per second

Flashing 5 times per secondFlashing 5 times per second

The response to the network management “Wink” command. The VLT LonWorks node must be reset to leave the wink state.

OFFOFF

OFF

OFFOFF

No power on board or hardware fault.

The Service LED displays the state of the NEURON chip. The following table shows the Service LED patterns for various states and defines their meaning.

MG.60.E4.02 - VLT is a registered Danfoss trademark

Service LED Patterns and Descriptions

LED Pattern Operation Description

Continuously ON Power-up of Neuron 3120xx

chip-based node or Neuron 3150 chip-based node with any PROM

VLT® 5000 / VLT® 6000

Use EEBLANK and follow reinitialization procedure.

Continuously OFF Power-up of Neuron 3120xx

chip-based node or Neuron 3150 chip-based node with any PROM

ON for one second at power-up followed by approximately 2 seconds OFF, then stays ON

Short flash every 3 seconds Anytime

Flashing at 1 second intervals Anytime Indicates node is unconfigured

Power-up/Reset May be caused by Neuron chip

Indicates bad node hardware.

firmware when mismatch occurs in application checksum.

Indicates watchdog timer resets occurring.

Possible corrupt EEPROM.

For Neuron 3150 chip-based node, use EEBLANK and follow reinitialization procedure.

but has an application. Proceed with loading node.

Brief flash at power-up. OFF duration approximately 10 seconds after which stays ON

Brief flash at power-up. OFF duration approximately 1 to 15 seconds, depending on application size and system clock. LED then begins flashing at 1 second intervals.

Brief flash at power-up followed by OFF

MG.60.E4.02 - VLT is a registered Danfoss trademark

Using EEBLANK or Neuron 3150 chip-based node

First power-up with new PROM on Neuron 3150 chipbased custom node. Unconfigured firmware state exported.

Indicate completion of blanking process.

Indicates unconfigured state.

Node is configuring and running normally.

Service LED Pattern Descriptions

VLT® 5000 / VLT® 6000

VLT adjustable frequency drive and LonWorks Network

Configuration Network

Drive Control

Input

The VLT LonWorks option card supports LonMark network design to improve interoperability. The Controller Object contains the VLT Adjustable Frequency Drive profile. The configuration parameters are network

The most common functions for controlling the VLT Adjustable Frequency Drive from the LonWorks network are made readily available. Those functions and their descriptions are presented in the table below. The control word function accesses additional drive capabilities for network control.

The choice of open loop or closed loop operation of the drive is selected in parameter 100, Configuration.

Using nviRefPcnt, the drive's reference is expressed as a percentage of the reference range. The range is set using parameters 204, Min. Reference and 205, Max. Reference. In open loop operation, reference represents the drive's desired output speed. In this case, set Min. Reference to 0 Hz and Max. Reference equal to Max. Frequency in parameter 202.

In closed loop operation, reference represents the desired setpoint. It is recommended that parameters 204 and 205 be set equal to parameters 201, Min. Frequency and 202, Max. Frequency.

variable inputs to the VLT. Configuration of parameters needs setting only one time, usually at installation.

analog input terminals should not be used for reference signals. The default setting (0%) should be maintained for preset references in parameters 211 (215) through 214 (218). Also, in closed loop operation, the default setting (0.0) should be maintained for drive setpoints in parameters 418 (215) and 419 (218).

Start/Stop and Reset fault SNVT_lev_disc. ST_OFF and ST_NUL are interpreted as low or “0.” ST_LOW, ST_MED, ST_HIGH, and ST_ON are interpreted as high or “1.”

NOTE T o optimize network performance and for proper drive operation, use only one of following input reference commands.

Reference 1

Network variable nviRefPcnt is a signed value. It represents the desired percentage of the VLT drive's reference range.

All references provided to the drive are added to the total reference value. If reference is to be controlled by the LonWorks bus only, ensure that all other reference inputs are zero. This means that digital input terminals and

Function SNVT type Variable Name Units Max Min Start/Stop SNVT_lev_disc nviStartStop Boolean Start Stop

*Reset fault SNVT_lev_disc nviResetFault Boolean Reset Enable

Reference 1 SNVT_lev_percent nviRefPcnt 0.005% 163.835 –163.840

Reference 2 SNVT_angle_vel nviRefRads 0.1 rad/sec 3276.7 –3276.8 Reference 3 SNVT_freq_hz nviRefHz 0.1 Hz 6553.5 0 Control word SNVT_state nviControlword 16 Boolean NA NA

* Reset on a transition from 0 to 1. A “0” must be sent after reset to enable the next reset.

Network Variable Inputs to VLT

VLT 5000 parameters are shown in parenthesis, where applicable.

MG.60.E4.02 - VLT is a registered Danfoss trademark

VLT® 5000 / VLT® 6000

)

Network Drive Control Input

(continued)

Reference 2

Network variable nviRefRads is a signed value. A negative value is interpreted as zero. It represents the desired output frequency of the drive in radians/second in open loop. It is rarely used in closed loop.

Reference 3

Network variable nviRefHz is an unsigned value. It represents the output frequency of the drive in Hz in open loop. It is rarely used in closed loop mode.

Control Word

The input network variable nviControlWord is a 16-bit word that provides additional operational control of the drive, as listed in the table below. The settings shown represent the Coast Stop command

Bit

Bit Setting

Setting 00001

BitBit

SettingSetting

00 0000Preset Ref. LSB

0000 01

01 0000Preset Ref. MSB

0101 02

02 1111DC Brake

0202 03

03 0000 Coast Stop

0303 04

04 1111Quick Stop

0404 05

05 1111 Freeze Freq.

0505 06

06 0000Ramp Stop

0606 07

07 0000 no Reset

0707 08

08 0000no Jog

0808 09

09 0000 no function

0909 10

10 1111 see Parm. 805

1010 11

11 0000 Relay 1 OFF

1111 12

12 0000 Relay 2 OFF

1212 13

13 0000 Setup LSB

1313 14

14 0000 Setup MSB

1414 15

15 0000no Reversing

1515

Preset Ref. LSB

Preset Ref. LSBPreset Ref. LSB

Preset Ref. MSB

Preset Ref. MSBPreset Ref. MSB

DC Brake no DC Brake

DC BrakeDC Brake

Coast Stop no Coast Stop

Coast StopCoast Stop

Quick Stop no Quick Stop

Quick StopQuick Stop

Freeze Freq. no Freeze Freq.

Freeze Freq.Freeze Freq.

Ramp Stop Start

Ramp StopRamp Stop

no Reset Reset

no Resetno Reset

no Jog Jog

no Jogno Jog

no function 02

no functionno function

see Parm. 805 03

see Parm. 805see Parm. 805

Relay 1 OFF Relay 1 ON

Relay 1 OFFRelay 1 OFF Relay 2 OFF Relay 2 ON

Relay 2 OFFRelay 2 OFF

no Reversing Reversing

no Reversingno Reversing

Setup LSB 06

Setup LSBSetup LSB Setup MSB 07

Setup MSBSetup MSB

no DC Brake

no DC Brakeno DC Brake

no Coast Stop

no Coast Stopno Coast Stop no Quick Stop

no Quick Stopno Quick Stop

no Freeze Freq. nviStartStop

no Freeze Freq.no Freeze Freq.

Start Bit

StartStart

Reset 00

ResetReset

Jog 01

JogJog

Relay 1 ON 04

Relay 1 ONRelay 1 ON Relay 2 ON 05

Relay 2 ONRelay 2 ON

Reversing 08

ReversingReversing

Control Word Bit Descriptions

for Coast Stop

The VLT 5000 allows the choice between two control word profiles, selected in parameter 512, Telegram Profile. The table below defines the Profidrive control word used for transmitting commands to the drive using the Profibus protocol.

Bit

Bit 1111

BitBit 00

00 ON 1

0000 01

01 ON 2

0101 02

02 ON 3

0202 03

03 Enable

0303 04

04 Ramp

0404 05

05 Ramp Enable

0505 06

06 Start

0606 07

07 Reset

0707 08

08 ON

0808 09

09 ON

0909 10

10 Valid

1010 11

11 Slow down

1111 12

12 Catch up

1212 13

1313 14

1414 15

15 Reversing

1515

Valu

Value

ValueValu

32768

3276832768

16384

1638416384

8192

81928192 4096

4096

40964096 2048

2048

20482048 1024

1024

10241024

512

512512 256

256

256256 128

128

128128

6464 32

3232 16

1616

8888 4444 2222 1111

0000

OFF 1

OFF 1OFF 1 OFF 2

OFF 2

OFF 2OFF 2 OFF 3

OFF 3

OFF 3OFF 3

Motor coastin

Quick stop

Quick sto

Freeze out freq.

Freeze out fre

sto

Ramp sto

Ram

Ramp sto

No function

No functionNo function

1 OFF

1 OFFJog 1 OFF 2 OFF

2 OFF

2 OFFJog 2 OFF

Data not valid

Data not validData not valid

No function

No functionNo function

No function

No functionNo function

No function

No functionNo function

Setup 1 (LSB)

Setup 1 (LSB

Setup 2 (MSB

Setu

Setup 2 (MSB

.Freeze out freq.

2 (MSB

ON 1

ON 1ON 1 ON 2

ON 2ON 2 ON 3

ON 3ON 3

Enable

EnableEnable

Ramp

RampRamp

Ramp Enable

Ramp EnableRamp Enable

Start

StartStart

Reset

ResetReset

ONON ON

ONON

Valid

ValidValid

Slow down

Slow downSlow down

Catch up

Catch upCatch up

Reversing

ReversingReversing

Profidrive Control W ord Bit

Descriptions

The equivalent control word bit settings to start and stop the drive (nviStartStop) and to reset after a fault (nviResetFault) are described in the table below.

nviStartStop nviResetFault

nviStartStopnviStartStop

Bit 00001

BitBit 00 00000

0000 01 00000

0101 02 11111

0202 03 11111

0303 04 11111

0404 05 11111

0505 06 00001

0606 07 00000

0707 08 00000

0808 09

09 00000

0909 10

10 11111

1010 11

11 00000

1111 12

12 00000

1212 13

13 00000

1313 14

14 00000

1414 15

15 00000

1515

nviResetFault

nviResetFaultnviResetFault

00 00

00 11

11 11

11 10

11 01

00 00

00 11

11 00

00 00

1 Description

Description

DescriptionDescription

0Preset Ref LSB

Preset Ref LSB

Preset Ref LSBPreset Ref LSB

0Preset Ref MSB

Preset Ref MSB

Preset Ref MSBPreset Ref MSB

1No DC Brake

No DC Brake

No DC BrakeNo DC Brake

1 No Coast Stop

No Coast Stop

No Coast StopNo Coast Stop

1 No Quick Stop

No Quick Stop

No Quick StopNo Quick Stop

1 No Freeze Freq.

No Freeze Freq.

No Freeze Freq.No Freeze Freq.

0Start

Start

StartStart

1 Reset

Reset

ResetReset

0Jog

Jog

JogJog

0 No function

No function

No functionNo function

1Bit 10

Bit 10

Bit 10Bit 10

0 Relay 1 On

Relay 1 On

Relay 1 OnRelay 1 On

0 Relay 2 On

Relay 2 On

Relay 2 OnRelay 2 On

0 Setup LSB

Setup LSB

Setup LSBSetup LSB

0Setup MSB

Setup MSB

No value is written to the control word

Setup MSBSetup MSB

0 Reversing

Reversing

ReversingReversing

Start/Stop and Fault Reset Control W ord

Bit Descriptions

NOTE Drive always stops and ignores serial bus commands to run when OFF/STOP or STOP/RESET function is activated from drive keypad.

VLT 5000 parameters are shown in parenthesis, where applicable.

MG.60.E4.02 - VLT is a registered Danfoss trademark

Precedence of the stop commands is:

1. Coast stop

2. Quick stop

3. DC brake stop

4. Ramp stop

Coast stop

The drive output stops immediately and the motor coasts to a stop.

• Drive display show UN.READY (unit ready) when coast stop is active.

• Drive cannot run in any mode.

• Parameter 503 (502), Coasting stop, determines interaction with input 27.

Quick stop

The drive output frequency ramps down to 0 Hz according to time set in parameter 207 (212), Ramp Down Time.

• Drive display shows STOP.

• Drive cannot run in AUTO mode but can run in HAND mode.

VLT® 5000 / VLT® 6000

Ramp stop

The drive output frequency ramps down to 0 Hz according to time set in parameter 207, Ramp Down Time.

• Factory setting is 60 sec for fan applications and 10 sec for most pump applications.

• Drive display shows STAND BY.

• Drive can run in HAND mode or AUTO through a digital input command.

• Parameter 505, Start, determines interaction with input 18.

DC brake stop

The drive brakes the motor to a stop using DC injection braking.

• Parameters 114 (125) and 115 (126) determine amount and time of DC current applied for braking.

• Drive display shows DC STOP.

• Drive cannot run in AUTO mode but can run in HAND mode.

• Parameter 504, DC Brake, determines interaction with input

27.

MG.60.E4.02 - VLT is a registered Danfoss trademark

VLT® 5000 / VLT® 6000

Drive Feedback to Network

The VLT LonWorks option provides 16 output variables to the network containing important drive and motor feedback data. Feedback data is sent when there is a change in value. The VLT LonWorks option will only transmit bound network variables. Since some data changes continuously, the transmission rate of those variables is limited. Min send time specifies the minimum time between transmissions of

The Drive Outputs (1, 2, or 3) will have a maximum time between transmission set by the Max send time. This function acts as a transmit heartbeat and allows a controller node to determine the health of the controller/VLT connection. The Max send time function is disabled when the configuration network variable nciMaxsendT is not configured or is set to “0.”

variables.

Function SNVT type Variable Name Units Max Min Drive status SNVT_state nvoDrvStatus 16 Boolean NA NA Drive output 1 SNVT_lev_percent nvoOutputPcnt 0.005% 163.835 – Current SNVT_amp nvoDrvCurnt 0.1 amps 3276.7 0 Energy SNVT_elec_kwh nvoDrvEnrg 1 kWh 65,535 0 Power SNVT_power_kilo nvoDrvPwr 0.1 kW 6553.5 0 Statusword SNVT_state nvoStatusWord 16 Boolean NA NA Drive output 2 SNVT_angle_vel nvoOutputRads 0.1 rad/sec 3276.7 –3276.8 Drive output 3 SNVT_freq_hz nvoOutputHz 0.1 Hz 6553.5 0 Output voltage SNVT_volt nvoVoltage 0.1 V 3276.7 –3276.8 Digital input SNVT_state nvoDigitlInput 16 Boolean NA NA Alarm SNVT_state nvoAlarmWord 16 Boolean NA NA Warning 1 SNVT_state nvoWarning1 16 Boolean NA NA Warning 2 SNVT_state nvoWarning2 16 Boolean NA NA DC voltage SNVT_volt nvoDCVolt 0.1 V 3276.7 0 Motor temp SNVT_lev_cont nvoTempMtr 0.5 % 100 0 Inverter temp SNVT_lev_cont nvoTempInvrtr 0.5 % 100 0

163.840

Drive status

NvoDrvStatus, nvoStatusWord, nvoDigitalInput, nvoAlarmWord, nvoWarning1 and nvoWarning2 are all 16 bit Boolean values using the SNVT_state variable type. Individual bits represent specific drive status states. The tables provided in Drive Status Bit Definitions define each bit.

Drive output 1

Network variable nvoOutputPcnt provides an analog indication of drive operation. In open loop, this is the drive output frequency in percentage within the reference range. To avoid negative numbers, or numbers above 100%, set parameter 204, Min. Reference to 0 Hz, and parameter 205, Max. Reference equal to parameter 202, Max. Frequency.

VLT 5000 parameters are shown in parenthesis, where applicable.

MG.60.E4.02 - VLT is a registered Danfoss trademark

Network Variable Outputs from VLT

In closed loop, this is the drive's feedback signal within the reference range. For best operation, set Min. Reference to equal parameter 413 (414), Min. Feedback, and

Max. Reference to equal parameter 414 (415), Max. Feedback.

Drive output 2 and Drive Output 3

Output 2 is useful in open loop to report the drive's output frequency in rad/sec. Output 3 in open loop reports the drive's output in Hz. Note that in closed loop nvoOutputHz will report the actual Feedback and not the output frequency. For best results, set Min. Reference to 0 Hz and Max. Reference equal to Max. Frequency. These variable are rarely used in closed loop.

VLT 6000 Drive Status Bit Definitions

Bit Value 0 1 Bit Value 0 1 00 32768 33 OFF 33 ON 00 32768

01 16384 32 OFF 32 ON 01 16384 02 8192 29 OFF 29 ON 02 8192 03 4096 27 OFF 27 ON 03 4096 04 2048 19 OFF 19 ON 04 2048 05 1024 18 OFF 18 ON 05 1024 06 512 17 OFF 17 ON 06 512 07 256 16 OFF 16 ON 07 256 08 128 no function 08 128 09 64 no function 09 64 10 32 no function 10 32 11 16 no function 11 16 12 8 no function 12 8 13 4 no function 13 4 Stopped Running 14 2 no function 14 2 No Warning Warning 15 1 no function 15 1 no Alarm Alarm

Bit Value 0 1 Bit Value 0 1 00 32768 Alarm Ctrl. Ready 00 32768 normal Unknown Fault

01 16384 Alarm Drive Ready 01 16384 normal Trip Lock 02 8192 Safety Open Safety Closed 02 8192 normal AMA Fault 03 4096 No Alarm Alarm 03 4096 normal HPFB Timeout 04 2048 04 2048 normal RS-485 Timeout 05 1024 05 1024 normal ASIC Fault 06 512 06 512 normal Short circuit 07 256 no Warning Warning 07 256 normal SMPS Fault 08 128 Not at Ref. at Ref. 08 128 normal Ground Fault 09 64 Hand Mode Auto Mode 09 64 normal Overcurrent 10 32 Fr. Range Warn Freq. in Range 10 32 normal Current limit 11 16 Stopped Running 11 16 normal Mtr. Thermistor 12 8 no used 12 8 normal Motor thermal 13 4 normal Voltage Warn. 13 4 normal Undervoltage 14 2 normal Current lim. 14 2 normal Overvoltage 15 1 normal Therm. Warning 15 1 normal In. Phase loss

no function no function no function no function no function no function no function no function no function no function no function no function no function

nvoDigitalInput

not used not used not used

nvoDrvStatus

nvoStatusWord nvoAlarmWord

VLT® 5000 / VLT® 6000

Bit Value 0 1 Bit Value 0 1 00 32768 normal Ref. High 00 32768 normal Autoramping

01 16384 normal Ctrl. Crd. Fault 01 16384 normal Start Delay 02 8192 normal Pwr. Crd. Fault 02 8192 normal Sleep Boost 03 4096 normal HPFB Timeout 03 4096 normal Sleep 04 2048 normal RS-485 Timeout 04 2048 normal AMA Done 05 1024 normal Overcurrent 05 1024 normal AMA Running 06 512 normal Current limit 06 512 normal Rev. Start 07 256 normal Thermistor O.T. 07 256 no Ramp Ramping 08 128 normal Motor O.T. 08 128 Forward Reverse 09 64 normal Inverter O.T. 09 64 not at Ref. at Reference 10 32 normal U.V. Alarm 10 32 Stopped Running 11 16 normal O.V. Alarm 11 16 Remote Ref. Local Ref. 12 8 normal U.V. Warning 12 8 normal OFF (HOA) 13 4 normal O.V. Warning 13 4 Auto Start/stop Hand 14 2 normal Input Phase Loss 14 2 normal Run Request 15 1 normal Live Zero 15 1 Run Permission no Run Perm.

nvoWarning1 nvoWarning2

MG.60.E4.02 - VLT is a registered Danfoss trademark

VLT 5000 Drive Status Bit Definitions

Bit Value 0 1 Bit Value 0 1 00 32768 33 OFF 33 ON 00 32768

01 16384 32 OFF 32 ON 01 16384 02 8192 29 OFF 29 ON 02 8192 03 4096 27 OFF 27 ON 03 4096 04 2048 19 OFF 19 ON 04 2048 05 1024 18 OFF 18 ON 05 1024 06 512 17 OFF 17 ON 06 512 07 256 16 OFF 16 ON 07 256 08 128 no function 08 128 09 64 no function 09 64 10 32 no function 10 32 11 16 no function 11 16 12 8 no function 12 8 Remote Local 13 4 no function 13 4 Stopped Running 14 2 no function 14 2 No Warning Warning 15 1 no function 15 1 no Alarm Alarm

Bit Value 0 1 Bit Value 0 1 00 32768 Alarm Ctrl. Ready 00 32768 normal Brake Test fail

01 16384 Alarm Drive Ready 01 16384 normal Trip Lock 02 8192 Safety Open Safety Closed 02 8192 normal AMA Fault 03 4096 No Alarm Alarm 03 4096 normal AMA OK 04 2048 04 2048 normal Power Up Fault 05 1024 05 1024 normal ASIC Fault 06 512 06 512 normal HPFB Timeout 07 256 no Warning Warning 07 256 normal RS-485 Timeout 08 128 Not at Ref. at Ref. 08 128 normal Short circuit 09 64 Local Bus Control 09 64 normal Power Fault 10 32 Fr. Range Warn Freq. in Range 10 32 normal Ground Fault 11 16 Stopped Running 11 16 normal Over current 12 8 no used Stall, Autostart 12 8 normal Torque limit 13 4 normal Voltage Warn. 13 4 normal Motor Thermal 14 2 normal Current lim. 14 2 normal Motor Overload 15 1 normal Therm. Warning 15 1 normal Inverter Overload

nvoDigitalInput

nvoStatusWord

VLT® 5000 / VLT® 6000

no function no function no function no function no function no function no function no function no function no function no function no function

nvoDrvStatus

not used not used not used

nvoAlarmWord

Bit Value 0 1 Bit Value 0 1 00 32768 normal Brake Test Fault 00 32768 normal Ramping

01 16384 normal Ctrl. Crd. Fault 01 16384 normal AMT 02 8192 normal Pwr. Crd. Fault 02 8192 normal Start Fwd/Rev 03 4096 normal HPFB Timeout 03 4096 normal Slow down 04 2048 normal RS-485 Timeout 04 2048 normal Catch up 05 1024 normal Overcurrent 05 1024 normal FB High 06 512 normal Torque limit 06 512 normal FB Low 07 256 normal Thermistor O.T. 07 256 normal Current High 08 128 normal Motor O.T. 08 128 normal Current Low 09 64 normal Inverter O.T. 09 64 normal Freq. High 10 32 normal U.V. Alarm 10 32 normal Freg. Low 11 16 normal O.V. Alarm 11 16 normal Brake Test OK 12 8 normal U.V. Warning 12 8 normal Braking Max. 13 4 normal O.V. Warning 13 4 normal Braking 14 2 normal Input Phase Loss 14 2 normal Discharge OK 15 1 normal No motor 15 1 normal Out Freq. Range

nvoWarning1

MG.60.E4.02 - VLT is a registered Danfoss trademark

nvoWarning2

VLT® 5000 / VLT® 6000

Network Timer Functions

Function SNVT Variable Units Max Min Default

type Name

Min send SNVT nciMin- time 0 days 0 days 0 days time _elapsed SendT 0 hours 0 hours 0 hours

_tm 1 min 0 min 0 min

5 sec 0 sec 0 sec 535 msec 100 msec

30 msec

Max SNVT nciMax- time 0 days 0 days 0 days receive _elapsed ReceiveT 18 hours 0 hours 0 hours time _tm 12 min 0 min 0 min

15 sec 1 sec 0 sec 0 msec 0 msec 0 msec

Max SNVT nciMax- time 0 days 0 days 0 days send _elapsed SendT 0 hours 0 hours 0 hours time _tm 1 min 0 min 0 min

5 sec 0 sec 0 sec 535 msec 100 msec

30 msec

78 kbps transformer coupled twisted pair and 78 Kbps free topology transceiver models.

1.25 Mbps transformer coupled twisted pair transceiver model.

500 msec

(Off)

0 msec (Off)

Network Timer Functions

Min send time

Sets the minimum period between transmissions for all output network variables, using the network variable nciMinSendT. This function is used to keep the transmission of variables that change continuously from dominating the network communication.

Max receive time

This drive function is replaced by the value set in parameter 803, Bus Time Out. The LonWorks option will initiate bus time out activities when the time set in parameter 803 expires without receiving an input network variable directed to the drive. This acts like a LonWorks receive heartbeat. The action taken by the drive is determined by the setting selected in parameter 804, Bus time out function. See the parameter description section of this manual. The value of nciMaxReceiveT has no effect on the operation of the drive.

Max send time

This function sets the maximum time between transmissions for the network variables Drive Output 1, 2, and 3 using the configuration network variable nciMaxSendT. It can be used by the controller to monitor the health of the VLT and controller connection. It acts like a LonWorks send heartbeat.

The Max send time function is disabled when nciMaxSendT is not configured or set to “0.”

MG.60.E4.02 - VLT is a registered Danfoss trademark

VLT® 5000 / VLT® 6000

VL T Parameter Access

A controller node can monitor or modify any VLT parameter by supporting the Parameter

access command and the Parameter access response functions. These functions allow a

controller complete access to the features of the VLT and the ability to configure drives with predefined settings, using the network variables nviParamCmd and nvoParamResp.

The following definitions describe how the fields of SNVT_preset are used by the VLT LonWorks option:

Learn

This field contains the function code for the VLT. The values for this field are:

LN_RECALL (0), LN_LEARN_CURRENT (1), LN_LEARN_VALUE (2), and LN_REPORT_VALUE (3).

LN_RECALL (0) and LN_REPORT_VALUE (3) are interpreted as read commands.

LN_LEARN_CURRENT (1) and LN_LEARN_VALUE (2) are interpreted as write commands.

Any other value in this field will result in an error message in the Parameter access

response.

Selector

This field contains the VLT parameter number, written in decimal notation, that is to be written or read. Requests for undefined parameters will result in an error message in the Parameter access esponse.

The controlling device should compare the parameter number of the response message to the requested parameter number to determine that the information received is the requested information and not a response to another controller or from another VLT.

Value

This array contains the parameter information to and from the VLT. All VLT parameters use 16 bit signed or unsigned values. The most significant 2 hex bytes of data will be stored in value [0] and the least significant 2 hex bytes of data will be stored in value [3]. In the event of an error message, the VLT will send 0xff in value [0] and an error code in value [3]. The error codes are defined in the section Parameter Access Error Codes in this manual.

NOTE

Consult

Conversion Inde x

the VLT Instruction Manual

parameter table for correct conversion factor f or reading and writing to and from drive.

Day, Hour, Minute, Second, Millisecond

The time fields are not supported by the VLT LonWorks option. The VLT will respond to parameter access requests as soon as they are received. Any values in the time fields of the Parameter access command will be ignored. All time fields will be set to “0” in the Parameter access response.

Function SNVT type Variable Name Parameter access command SNVT_preset nviParamCmd

Function SNVT type Variable Name Parameter access response SNVT_preset nvoParamResp

MG.60.E4.02 - VLT is a registered Danfoss trademark

Network Variable Input to VLT

Network Variable Output from VLT

VLT® 5000 / VLT® 6000

CAUTION

Parameter Access Error Codes

Parameter Access Command and Response Examples

In the event of an error message in response to a Parameter access command (see VLT Parameter Access), the VLT sends 0xff in value

Parameter Access Error Codes

Exception Code Interpretation

1 Illegal function for the addressed node 2 Illegal data address (i.e., illegal parameter number) 3 Illegal data value 6 Busy

The examples below demonstrate use of the

parameter access command and parameter access response functions of the controller

node. In the examples, the controller node has a parameter access command SNVT_preset called nvoParamCmd and a parameter access response SNVT_preset called nviParamResp. In writing to the drive correctly, the access response simply repeats the entered data. In the event of an error, an error code is displayed in value [3]. See Parameter Access Error Codes above.

bit [0] and an error code in value [3]. Error code definitions are presented in the table below.

Parameter 971 must be set to STORE ACTIVE SETUP for entering data values through LonWorks

command

changes in drive. See parameter 971 in section of this manual.

Consult conversion index in the

VL T Instruction Manual

table for correct conversion factor for reading and writing to and from drive.

parameter access

in order to save

Parameter Descriptions

NOTE

parameter

Example 1:

The controller node writes 30 seconds to parameter 206 (205), Ramp time up of the VLT. Conversion index is 0, so the conversion factor is 1.0 (VLT 5000 conversion factor -2)).

The controller node access command sends the following parameter write request to the VLT.

nvoParamCmd.learn= LN_LEARN_CURRENT nvoParamCmd.selector = 206 nvoParamCmd.value[0] = 0 nvoParamCmd.value[1] = 0 nvoParamCmd.value[2] = 0 nvoParamCmd.value[3] = 1E hex (30 decimal)

VLT 5000 parameters are shown in parenthesis, where applicable.

The controller node receives the following parameter access response from the VLT.

nviParamResp.learn = LN_LEARN_CURRENT nviParamResp.selector = 206 nviParamResp.value[0] = 0 nviParamResp.value[1] = 0 nviParamResp.value[2] = 0 nviParamResp.value[3] = 1E hex nviParamResp.day = 0 nviParamResp.hour = 0 nviParamResp.minute = 0 nviParamResp.second = 0 nviParamResp.millisecond = 0

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Example 2:

Example 3:

A controller node writes 18.0 Hz to VLT parameter 201, Output Frequency Low Limit. The conversion index is -1, so the conversion factor is 0.1.

The controller node sends the following parameter write request to the VLT.

nvoParamCmd.learn = LN_LEARN_CURRENT nvoParamCmd.selector = 201 nvoParamCmd.value[0] = 0 nvoParamCmd.value[1] = 0 nvoParamCmd.value[2] = 0 nvoParamCmd.value[3] = B4 hex (180 decimal)

A controller node writes [2] (REFERENCE [UNIT]) to parameter 007 (009), Large Display Readout, of the VLT.

The controller node sends the following parameter write request to the VLT.

nvoParamCmd.learn = LN_LEARN_CURRENT nvoParamCmd.selector = 7 nvoParamCmd.value[0] = 0 nvoParamCmd.value[1] = 0 nvoParamCmd.value[2] = 0 nvoParamCmd.value[3] = 2

The controller node receives the following parameter access response from the VLT.

nviParamResp.learn = LN_LEARN_CURRENT nviParamResp.selector = 201 nviParamResp.value[0] = 0 nviParamResp.value[1] = 0 nviParamResp.value[2] = 0 nviParamResp.value[3] = B4 hex nviParamResp.day = 0 nviParamResp.hour = 0 nviParamResp.minute = 0 nviParamResp.second = 0 nviParamResp.millisecond = 0

Time 1 - The controller node receives the following parameter access response from the VLT.

nviParamResp.learn = LN_LEARN_CURRENT nviParamResp.selector = 7 nviParamResp.value[0] = 0 nviParamResp.value[1] = 0 nviParamResp.value[2] = 0 nviParamResp.value[3] = 2 nviParamResp.day = 0 nviParamResp.hour = 0 nviParamResp.minute = 0 nviParamResp.second = 0 nviParamResp.millisecond = 0

Example 4:

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A controller node reads the value of parameter 407 (411), Switching Frequency, in the VLT. The value stored in parameter 407 is 10 kHz. The conversion index is 2, so the conversion factor is 100.

The controller node sends the following parameter read request to the VLT.

nvoParamCmd.learn = LN_RECALL nvoParamCmd.selector = 407 nvoParamCmd.value[0] = 0 nvoParamCmd.value[1] = 0 nvoParamCmd.value[2] = 0 nvoParamCmd.value[3] = 0

VLT 5000 parameters are shown in parenthesis, where applicable.

The controller node receives the following parameter access response from the VLT.

nviParamResp.learn = LN_RECALL nviParamResp.selector = 407 nviParamResp.value[0] = 0 nviParamResp.value[1] = 0 nviParamResp.value[2] = 0 nviParamResp.value[3] = 64 hex (100 decimal) nviParamResp.day = 0 nviParamResp.hour = 0 nviParamResp.minute = 0 nviParamResp.second = 0 nviParamResp.millisecond = 0

VLT® 5000 / VLT® 6000

Example 5:

Standard Object Support

A controller node error is written to VLT parameter 201, Output Frequency Low Limit, with 80.0 Hz when the high limit is 60 Hz. The conversion index is -1, with conversion factor 0.1.

The controller node sends the following parameter write request to the VLT.

nvoParamCmd.learn = LN_LEARN_CURRENT nvoParamCmd.selector = 201 nvoParamCmd.value[0] = 0 nvoParamCmd.value[1] = 0 nvoParamCmd.value[2] = 3 hex nvoParamCmd.value[3] = 20 hex (800 decimal)

The VLT LonWorks option supports two standard objects and three SNVTs, per the LonMark standard object philosophy. The standard objects are the Node Object (containing the Object request, Object status, and Object alarm) and the Controller object, (containing the network variables described in the preceding sections). The Object request is a LonMark device used to obtain status and alarm information from a node.

The controller node receives the following parameter access response from the VLT.

nviParamResp.learn = LN_NULL nviParamResp.selector = 201 nviParamResp.value[0] = 0 nviParamResp.value[1] = 0 nviParamResp.value[2] = 0 nviParamResp.value[3] = 3 (illegal data value) nviParamResp.day = 0 nviParamResp.hour = 0 nviParamResp.minute = 0 nviParamResp.second = 0 nviParamResp.millisecond = 0

The nviRequest.object_id should be set to “1” (controller node). The network uses nviRequest, nvoStatus and nvoAlarm variables for these functions.

2. The VLT sends an Object status containing a bit map of supported status fields in response to all other Object requests, including undefined requests.

It is not necessary for a controller to support the Node Object network variables. The

Object request, Object status and Object alarm provide status and alarm information

for controllers that only support this type of functionality. The status and alarm functions described in the preceding sections contain more drive specific information than Object status and Object alarm.

1. The VLT sends an Object status containing drive status information and an Object alarm containing fault informationin response to the following Object requests:

RQ_NORMAL, RQ_UPDATE_STATUS, and RQ_UPDATE_ALARM.

Function SNVT type Variable Name Input/Output Object request SNVT_obj_request nviRequest Input Object status SNVT_obj_status nvoStatus Output Object alarm SNVT_alarm nvoAlarm Output

3. The VLT Object status supports the following status fields: invalid_id, invalid_request,open_circuit, out_of_service, electrical_fault, comm_failure, manual_control, and in_alarm. All other fields are always set to “0.”

4. The VLT sends an Object alarm following any set or reset of a drive fault condition.

5. The Object alarm supports the AL_ALM_CONDITION and AL_NO_CONDITION alarm types.

Network Variables for Node Object Support

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VLT® 5000 / VLT® 6000

VLT 6000 Alarm Descriptions

Alarm numbers and descriptions that correspond to nvoAlarmWord bit numbers are

Bit

number

222AMA failed 3 18 HPFB timeout 4 17 Serial communication timeout 5 16 Short circuit 615Switch mode fault 714Ground fault 8 13 Overcurrent

9 12 Current limit 10 11 Motor thermistor 11 10 Motor overtem 12 9 Inverter overload 13 *8 Undervolta 14 **7 Overvolta 15 4 Mains failure

* also bit 10 of nvoWarning 1

** ****

** also bit 11 of nvoWarning 1

****

Alarm

number

shown in the table below. See the VLT 6000 Instruction Manual for more details.

Alarm Description

erature

VLT 5000 Alarm Descriptions

Alarm numbers and descriptions that correspond to nvoAlarmWord bit numbers are shown in the table below.

Bit

number

023Brake test failed

1XTri

222

321

420Power u

519

6 18 HPFB timeout

7 17 Standard bus timeout

8 16 Short circuit

915Switch mode fault 10 14 Ground fault 11 13 Overcurrent 12 12 Tor 13 11 Motor thermistor 14 10 Motor overload 15 9 Inverter overload

Alarm

number

locked MA tuning not OK MA tuning OK

SIC fault

ue limit

See the VLT 5000 Instruction Manual for more details.

Alarm Description

fault

VLT 5000 parameters are shown in parenthesis, where applicable.

★ Factory setting

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Parameter List

Parameter Descriptions

Conversion Data PNU Parameter Description Default V alue Range Index T ype 803 Bus time out 1 sec 1 - 99 sec. 0 3 804 Bus time out function no function 0 3 805 Bit 10 function Bit 10 = > CTW ACT 0 6 927 Parameter edit Enable 0 6 928 Process control Enable 0 6 970 Edit setup Active Setup 0 5 971 Store data values no action 0 5

In addition to the parameters listed above, the drive's control terminals issue digital inputs that control functions similar to those provided by nviStartStop, nviResetFault, and nviControlWord. Parameters (502) 503 through 508 determine how the drive

responds to commands for (quick stop, VLT 5000 only), coasting stop, DC brake, start, reverse, setup select and preset reference select. See Network Drive Control

Input in this manual and the VLT Instruction Manual for more information.

803803

803

803803 Bus time outBus time out

Bus time out

Bus time outBus time out

Selection:

1 - 99 sec ★ 1 sec

Function: Sets the duration for the bus time out function. If the set time passes without the drive receiving a LonWorks message addressed to

it, the drive will take the action specified in parameter 804, Bus Time Out Function.

NOTE After time out counter is reset it must be triggered by valid contr ol word before new time out can be activated.

VLT 5000 parameters are shown in parenthesis, where applicable.

★ Factory setting

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804804

804

804804 TT

ime out functionime out function

ime out function

ime out functionime out function

Selection: ★ Off

(NO FUNCTION) [0]

Freeze output frequency

(FREEZE OUTPUT FREQ.) [1]

Stop with auto restart

(STOP) [2]

Output frequency = JOG freq.

(JOGGING) [3]

Output frequency = Max. freq.

(MAX SPEED) [4]

Stop with trip

(STOP AND TRIP) [5]

Control without DeviceNet

(NO COM OPT CONTROL) [6]

Select set-up 4

(SELECT SET UP 4) [7]

Function: The time out timer is triggered at the first reception of a valid control word, i.e., bit 10 = ok.

The time out function can be activated in two different ways:

1. The drive does not receive a LonWorks command addressed to it within the specified time.

2. Parameter 805 is set to “bit 10 = 0 time out” and a control word with “bit 10 = 0” is sent to the drive.

The VLT remains in the time out state until one of the following four conditions is true:

1. A valid control word (Bit 10 = ok) is received and the drive is reset through the bus, the digital input terminals or the local control panel. (Reset is only necessary when the time out function Stop w/trip is selected.) Control via LonWorks is resumed using the received control word.

2. Local control via the local control panel is enabled.

3. Parameter 928, Access to process control, is set to Disabled. Normal control via the digital input terminals and the RS-485 interface is now enabled.

VLT® 5000 / VLT® 6000

4. Parameter 804, Bus time out function, is set to Off. Control via LonWorks is resumed and the most recent control word is used.

Description of Selections:

• Freeze output frequency. Maintain present output frequency until communication is resumed.

• Stop with auto restart. Stop and automatically restart when communication is resumed.

• Output frequency = JOG freq. Drive will produce JOG frequency set in parameter 209 (213), Jog frequency, until communication is resumed.

• Output frequency = Max. freq. Drive will produce maximum output frequency (set in parameter 202, Output frequency) until communication is resumed.

• Stop with trip. Drive stops and requires a reset command before it will restart.

• Control without LonWorks. Control via LonWorks is disabled. Control is possible via digital input terminals and/or standard RS-485 interface until LonWorks communication is resumed.

• Select setup 4. Setup 4 is selected in parameter 002 (004), Active setup, and settings of setup 4 are used. Parameter 002 (004) is not reset to the original value when communication is resumed.

VLT 5000 parameters are shown in parenthesis, where applicable.

★ Factory setting

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805805

CAUTION

805

805805 ContrContr

ol Wol W

oror

ol W

ol Wol W

oror

Contr

ContrContr Bit 10 FunctionBit 10 Function

Bit 10 Function

Bit 10 FunctionBit 10 Function

Selection:

No function

(NO FUNCTION) [0]

★ Bit 10 = 1: control word active

(BIT 10 = 1 >CTW ACTIVE) [1]

Bit 10 = 0: control word active

(BIT 10 = 0 >CTW ACTIVE) [2]

Bit 10 = 0: bus time out

(BIT 10 = 0 >TIME OUT) [3]

Function: According to the drive's standard communications profile, control word and speed reference will be ignored if bit 10 of the control word is 0. Parameter 805 lets the user change the function of bit 10. This is some times necessary, as some masters set all bits to 0 in various fault situations. In these cases, it makes sense to change the function of bit 10 so that the VLT is commanded to stop (coast) when all bits are 0.

VLT® 5000 / VLT® 6000

Description of Selections:

• No function. Bit 10 is ignored, i.e., control word and speed reference are always valid.

• Bit 10 = 1 >CTW active. The control word and speed reference are ignored if bit 10 = 0.

With

Bit 10

selected, nviStartStop and nviResetFault commands will not function.

• Bit 10 = 0 >CTW active. The control word and speed reference are ignored if bit 10 = 1. If all bits of the control word are 0, the VLT reaction will be coasting.

• Bit 10 = 0 >time out. The time out function selected in parameter 804 is activated when bit 10 is 0.

= 0

>CTW active

927927

927

927927 Parameter editParameter edit

Parameter edit

Parameter editParameter edit

928928

928

928928 PrPr

ocess controcess contr

ocess contr

PrPr

ocess controcess contr

970970

970

970970 Edit setup selectEdit setup select

Edit setup select

Edit setup selectEdit setup select

971971

971

971971 StorStor

e data valuee data value

Stor

e data value

StorStor

e data valuee data value

olol

Data Value:

Disable (DISABLE) [0]

★ Enable (ENABLE) [1]

Data Value:

Disable (DISABLE) [0]

★ Enable (ENABLE) [1]

Data Value:

Preprogrammed (FACTORY SETUP) [0] Setup 1 (SETUP 1) [1] Setup 2 (SETUP 2) [2] Setup 3 (SETUP 3) [3] Setup 4 (SETUP 4) [4]

★ Active Setup (ACTIVE SETUP) [5]

Data Value: ★ No action (NO ACTION) [0]

Store all setups

(STORE ALL SETUPS [1]

Store edit setup

(STORE EDIT SETUP) [2]

Store active setup

(STORE ACTIVE SETUP) [3]

★ Factory Setting

This parameter determines if LonWorks can be used to access and edit drive parameters.

This parameter determines LonWorks control of the drive. When Enable is selected, drive parameters 503 through 508 determine the interaction between various LonWorks and digital drive input commands. See the VLT Instruction Manual for details.

This parameter selects the setup being edited, through either the drive control panel or LonWorks. The drive may operate in one setup while editing another. Active setup selects the parameter being edited as the setup controling drive operation.

When this parameter is set to Store active setup, LonWorks downloaded parameters are written to EEPROM and stored. Store edit setup stores the setup selected in parameter

970. Store all setups stores all setups in parameter 970. When finished (appx. 15 sec.), it automatically returns to No action. Any parameters values written via the serial bus with No action selected are lost when power is removed from the drive. The function is only activated with the VLT in stop mode.

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Decommissioning VLT Drive from LonWorks Network

CAUTION

Specific procedures must be followed when removing VLT drive from LonWorks network. Failure to adhere to steps described can result in drive entering inoperable state.

The VLT drive cabling connector must be disconnected prior to removing the drive from the LonWorks network configuration to prevent corruption of the drive EEPROM processor. Decommission the drive from the network in accordance with the following procedure.

1. Use LonWorks software configuration tool to remove bindings from drive function blocks.

2. Use LonWorks software configuration tool to remove drive function blocks from all drive variables.

3. Disconnect LonWorks cabling from drive input terminal.

4. Use LonWorks software configuration tool to remove drive device from network.

Improper decommissioning of the drive may result in locking up the drive with the display reading as follows.

Failed

OPTION ERROR:

1: NO OPT. RESPONSE

Try to reinitialize drive by removing power until display does blank. Reapply power. If drive functions are not restored, order the Danfoss EEBLANK Kit (P/N 175L4167) to restore the EEPROM functionality.

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User Manual